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From "MaoYuan Xian (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HAMA-764) In SpillingQueue, spilling thread dos not start when messages number less than threshold
Date Thu, 13 Jun 2013 11:27:19 GMT
MaoYuan Xian created HAMA-764:
---------------------------------

             Summary: In SpillingQueue, spilling thread dos not start when messages number
less than threshold
                 Key: HAMA-764
                 URL: https://issues.apache.org/jira/browse/HAMA-764
             Project: Hama
          Issue Type: Bug
          Components: bsp core
    Affects Versions: 0.7.0
            Reporter: MaoYuan Xian


In the SpillingDataOutputBuffer.SpillingStream, we can find the following implementations
to starting the spilling thread.
{code}
   private void checkSpillStart() throws IOException {
      if (bytesWritten_ >= thresholdSize_) {
        try {
          startSpilling();
        } catch (InterruptedException e) {
          throw new IOException("Internal error occured writing to buffer.", e);
        }
      }
    }
{code}

But I encountered the message loss, when total bytes written number is less than thresholdSize.
Because the spilling thread in not invoked, and handleSpilledBuffer method of SpilledDataProcessor
can not get the chance to run.

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